﻿// MIT License (MIT)
// 
// Copyright (c) 2014 K Ercan Turkarslan
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// 

using System;
using System.Collections.Generic;
using System.Linq;

namespace Mios
{
    public class MiosItemCollection<T>
    {
        #region ReadOnly Property Items : Array of T;
        private readonly List<T> _items;

        public T[] Items
        {
            get
            {
                return _items.ToArray<T>();
            }
        }
        #endregion

        #region ReadOnly Property SortedItems : Sorted Array of T;
        private readonly SortedDictionary<UInt32, T> _sortedItems;

        public IEnumerable<T> SortedItems
        {
            get
            {
                return _sortedItems.Values.ToArray();
            }
        }
        #endregion

        #region Public Methods : Length, GetById, Add

        public Int32 Count()
        {
            return _items.Count();
        }

        public T GetById(UInt32 id)
        {
            return _sortedItems.ContainsKey(id) ? _sortedItems[id] : default(T);
        }

        public void Add(T item, Boolean ignoreDuplicate)
        {
            var miosItem = (MiosItem)(object)item;

            if (_sortedItems.ContainsKey(miosItem.Id))
            {
                if (ignoreDuplicate)
                    return;

                throw new ArgumentException(String.Format("An element with the same key [{0}] exists", miosItem.Id));
            }

            _sortedItems.Add(miosItem.Id, item);
            _items.Add(item);
        }
        #endregion

        #region Constructor(s)

        internal MiosItemCollection()
        {
            _items = new List<T>();
            _sortedItems = new SortedDictionary<UInt32, T>();
        }
        #endregion
    }
}
